An automatic paper stack bundling apparatus and bundling method

Abstract

The application relates to the field of automatic packaging, and discloses a paper stack automatic bundling device and a bundling method. The paper stack automatic bundling device comprises a rack, a paper feeding module, a bundling module and a rubberizing module. The rack is provided with a feeding station, a bundling station and a rubberizing station. The bundling station is provided with a lifting channel, and the feeding station is located below the lifting channel. The paper feeding module is used for conveying packaging paper between the feeding station and the bundling station. The bundling module comprises a lifting assembly, a paper folding assembly and a rotating assembly. The lifting assembly comprises a bearing unit and a lifting driving unit. The paper folding assembly comprises a primary paper folding mechanism and a secondary paper folding mechanism. The rotating assembly comprises a rotating supporting plate and a rotating driving unit. The paper stack automatic bundling device can automatically complete paper feeding, bundling and rubberizing operations, and has the advantages of reliable bundling effect and high bundling efficiency.

Description

Technical Field

[0001] This invention relates to the field of automated packaging, and more particularly to an automated paper stacking equipment and method. Background Technology

[0002] For sheet-like products, they are often stacked, packaged, and transported in piles. For sheet-like products with at least one set of straight edges, after stacking a certain number of piles, they are often bundled with wrapping paper to improve the stability of the stacking and increase packaging and transportation efficiency. For example, cigarette outer packaging boxes exist as printed and die-cut cardboard before being folded into boxes. Before transportation, a certain number of cardboard boxes need to be stacked and bundled with kraft paper strapping. Currently, the bundling and packaging of piles is mainly done manually. Due to the significant uncertainty in the bundling force and position each time, manual bundling generally results in low packaging efficiency and unstable quality. Since the production and processing of sheet-like products has largely been automated, the bundling and packaging of piles significantly limits the improvement of production efficiency.

[0003] Chinese invention patent application CN 111392121A discloses an automatic packaging device for finished cigarette box cardboard products. This device can automatically complete operations such as neat feeding of cigarette box cardboard, feeding and packing of wrapping paper, and pasting of wrapping paper, offering high efficiency. However, the aforementioned automatic packaging device still has shortcomings. Specifically, the bundling steps for the wrapping paper are: feeding the wrapping paper into a ring shape - neatly feeding the cigarette box cardboard into the ring-shaped wrapping paper - adjusting the tightness of the wrapping paper - cutting the wrapping paper. During this bundling process, how to restrict the wrapping paper to form a ring shape, how to adjust the tightness of the wrapping paper, and the structure and working mode of the stop device are not clearly described, making the reliability of the wrapping paper uncertain. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an automated paper stacking equipment and method that can automatically complete paper feeding, bundling and adhesive application operations, and has the advantages of reliable bundling effect and high bundling efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an automated paper stacking and bundling device, comprising at least:

[0006] The frame is provided with a feeding station, a strapping station and an adhesive application station. The strapping station is provided with a lifting channel, and the feeding station is located below the lifting channel.

[0007] The paper feeding module is used to convey packaging paper between the feeding station and the bundling station.

[0008] The bundling module includes a lifting component, a folding component, and a transposition component.

[0009] The lifting assembly includes a support unit and a lifting drive unit, wherein the lifting drive unit is used to drive the support unit to move between the feeding station and the binding station.

[0010] The origami assembly includes a primary or secondary origami mechanism. The primary origami mechanism includes two pre-folding push blocks, which are positioned opposite each other to the binding station. The primary origami mechanism also includes a primary drive unit for driving the pre-folding push blocks to translate relative to the binding station. The secondary origami mechanism includes a secondary insert plate and a secondary drive unit, which drives the secondary insert plate to translate.

[0011] The indexing assembly includes an indexing tray and an indexing drive unit, wherein the indexing drive unit is used to drive the indexing tray to move between the bundling station and the adhesive application station.

[0012] The secondary insert plate corresponds to one of the pre-folding push blocks, and the indexing tray corresponds to the other pre-folding push block; the upper surface of the pre-folding push block is provided with a secondary folding groove, and the secondary insert plate and the indexing tray can be partially inserted into the secondary folding groove of the corresponding pre-folding push block;

[0013] Adhesive application module, which corresponds to the adhesive application station;

[0014] The discharge module includes discharge grippers and a discharge drive unit. The discharge drive unit is used to drive the discharge grippers to pick up and transfer paper stacks at the adhesive application station.

[0015] Initially, the carrier unit is located at the feeding station. During the paper stacking operation, the paper stack is first fed onto the carrier unit, while the paper feeding module simultaneously transports the packaging paper between the feeding station and the bundling station, with the packaging paper positioned above the paper stack. The lifting drive unit pushes the carrier unit and the paper stack upwards, passing through the lifting channel and entering the bundling station. During the ascent, the packaging paper contacts the paper stack and is lifted synchronously, with both ends of the packaging paper drooping downwards.

[0016] Subsequently, the primary drive unit moves two pre-folding pushers to below the paper stack, folding the lower end of the packaging paper downwards. The paper stack falls onto the pre-folding pushers, but their movement is limited due to the obstruction of the support unit. The lifting drive unit resets, driving the support unit downwards to create space for the secondary fold. The secondary drive unit continues operating, driving the secondary insert plate along the corresponding secondary folding groove until it partially passes through the corresponding pre-folding pusher, folding the corresponding end of the packaging paper. Since the support unit has now reset, the folding of the corresponding end of the packaging paper is ensured to be completed smoothly.

[0017] Finally, the indexing drive unit drives the indexing tray to insert into the secondary folding slot and partially pass through the corresponding pre-folding push block, completing the folding of the corresponding end of the packaging paper and placing the entire paper stack on the indexing tray. The indexing drive unit then drives the indexing tray, paper stack, and packaging paper to the adhesive application station. The adhesive application module then applies tape to the end of the packaging paper located below the stack.

[0018] The automated paper stacking and bundling equipment of this application can automatically complete the paper feeding, bundling and adhesive application operations. It adopts a three-step folding method of first folding, second folding and transposition tray folding, which can efficiently and reliably complete the folding operation of packaging paper, provide packaging for subsequent adhesive application, and achieve good bundling effect and high operation efficiency.

[0019] Preferably, the bearing unit includes a fixed block, with movable blocks on both sides of the fixed block. The movable blocks are arranged opposite to the pre-folding push block, and the movable blocks are connected to the fixed block through lateral elastic elements. The fixed block is connected to the lifting drive unit.

[0020] As the packing paper is lifted, its two ends naturally droop, remaining relatively loose. To ensure the reliability of the bundled packaging, during each fold, the pre-folding push block contacts the movable block and together presses down on the lower end of the packaging paper. Because the movable block can move relative to the fixed block, after clamping the packaging paper, the pre-folding push block and the movable block can continue to move together for a distance, further tightening the packaging paper and resulting in a more secure and reliable bundling effect.

[0021] In addition, to achieve folding, the pre-folding pusher needs to extend a certain distance under the paper stack. However, leaving a large space on both sides of the supporting unit would inevitably affect the reliability of lifting the paper stack. To ensure the reliability of the supporting unit in lifting the paper stack, while also taking into account the space requirements for one fold, movable blocks are set on both sides of the supporting unit. During the lifting process, the movable blocks can play the role of supporting the paper stack. During one fold, the movable blocks can retract under the push of the pre-folding pusher, leaving sufficient space for one fold.

[0022] Preferably, the origami assembly further includes an origami pressing mechanism, which includes a fixed base and a pressing block. The pressing block is connected to the fixed base via a pressing elastic element. The origami pressing mechanism is located above the binding station, with the pressing block facing the binding station.

[0023] During the first and second folding processes, the folding and pressing mechanism provides pre-tightening pressure to the packaging paper and the stack of materials, thereby pressing the paper stack and the packaging paper together.

[0024] Preferably, the origami assembly further includes a primary origami support, with two primary origami mechanisms mounted on the primary origami support, and also includes a lifting cylinder for driving the primary origami support to rise and fall.

[0025] Since the secondary folding groove will hinder the translational movement of the indexing tray, an additional drive is needed. By setting a primary folding bracket and a lifting cylinder, the pre-folding push block can be driven to move up and down, so that the indexing tray and the pre-folding push block are staggered in height, allowing for smooth indexing movement.

[0026] Preferably, the indexing assembly further includes an indexing limiting unit, which includes an upper limit plate and a limiting drive unit. The upper limit plate is disposed vertically opposite to the indexing tray, and the limiting drive unit is used to drive the upper limit plate to move vertically relative to the indexing tray.

[0027] During the transfer of the paper stack from the bundling station to the adhesive application station, the upper limit plate and the transfer tray work together to press the paper stack firmly, effectively ensuring its stability during transport. Simultaneously, they effectively limit the fold at the bottom of the packaging paper, ensuring smooth adhesive application.

[0028] Preferably, the paper feeding module includes a paper feeding assembly, which includes a paper cutting mechanism and a feeding mechanism;

[0029] The paper cutting mechanism includes a paper cutting platform, a paper cutting drive, and a first cutter. The first cutter is located above the paper cutting platform, and the paper cutting drive is used to drive the first cutter to move up and down relative to the paper cutting platform.

[0030] The feeding mechanism includes a paper feed chuck and a feeding drive, wherein the feeding drive is used to drive the paper feed chuck to pick up paper and move it in translation on the paper cutting platform.

[0031] The feeding mechanism is used to pick up the paper and feed it to a specific length, while the cutting mechanism is used to cut the packaging paper.

[0032] Preferably, the paper feeding module further includes a paper dispensing assembly, which includes a paper storage bracket and a paper pulling mechanism, wherein the paper pulling mechanism is located between the paper storage bracket and the paper cutting mechanism;

[0033] The paper pulling mechanism includes at least two fixed shafts, with a movable shaft between each pair of adjacent fixed shafts; the paper pulling mechanism also includes a paper pulling drive, which is used to drive the movable shaft to move relative to the fixed shafts.

[0034] The paper storage holder is used to store whole rolls of packaging paper. To reduce the resistance of the feeding mechanism, a paper pulling mechanism is set up to pre-pull the packaging paper from the roll by a certain length. During the paper pulling operation, the free end of the packaging paper first passes around the fixed shaft and the movable shaft and is fixed on the paper cutting platform. Then, the movable shaft moves relative to the fixed shaft, thus pulling the packaging paper out of the roll. Before the feeding mechanism feeds the paper, the movable shaft returns to its original position, and the pulled-out packaging paper is in a relaxed state, allowing the feeding mechanism to feed the paper easily.

[0035] Preferably, the adhesive applicator module includes an adhesive feeding component and an adhesive applicator, wherein the adhesive feeding component includes an adhesive storage bracket, an adhesive cutting mechanism, and an adhesive feeding mechanism.

[0036] The cutting mechanism includes a cutting base, a second cutter, and a cutting drive, wherein the cutting drive is used to drive the second cutter to move relative to the cutting base;

[0037] The adhesive applicator includes an adhesive applicator head and an adhesive applicator drive. The adhesive applicator head is positioned upwards and forms an adhesive applicator area above it. The adhesive applicator drive is used to drive the adhesive applicator head to move up and down.

[0038] The adhesive feeding mechanism includes an adhesive feeding chuck and an adhesive feeding drive. The adhesive feeding drive is used to drive the adhesive feeding chuck to pick up the adhesive tape from the adhesive cutting mechanism and transfer it to the adhesive application area.

[0039] The adhesive storage bracket is used to store whole rolls of adhesive tape, the adhesive feeding mechanism is used to clamp the adhesive tape, pull it out to a certain length and move it to the adhesive application area, and the adhesive cutting mechanism is used to cut the adhesive tape at a specific position.

[0040] Preferably, the adhesive application drive includes a primary cylinder and a secondary cylinder. The primary cylinder is fixedly mounted on the frame, and its output end is connected to a transition connecting block. The secondary cylinder is mounted on the transition connecting block, and its output end is connected to the adhesive application head.

[0041] The adhesive applicator has two strokes, driven by a primary cylinder and a secondary cylinder respectively. In the first stroke, the applicator head feeds and contacts the tape to pick it up. In the second stroke, the applicator head moves the tape to adhere it to the packaging paper.

[0042] An automated paper stacking method, employing the automated paper stacking equipment described above;

[0043] At least the following steps are included:

[0044] S1. Feeding: The paper stack is fed into the carrying unit located at the feeding station. At the same time, the paper feeding module works to transport the packaging paper between the feeding station and the bundling station. At this time, the packaging paper is located above the paper stack.

[0045] S2. Lifting: The lifting drive unit works to push the carrying unit and paper stack upward and through the lifting channel into the bundling station; at this time, the upper surface of the carrying unit is not lower than the upper surface of the pre-folding push block; during the rising process, the packaging paper contacts the paper stack and is lifted synchronously, and the two ends of the packaging paper hang down;

[0046] S3. Paper clamping: When the drive unit works, the two pre-folding push blocks move closer to each other and move to the bottom of the paper stack; the lifting drive unit resets, drives the carrying unit to move downward, and the paper stack falls onto the pre-folding push blocks;

[0047] The secondary drive unit operates, driving the secondary insert plate to move along the corresponding secondary folding groove until it partially passes through the corresponding pre-folding push block, and folding the corresponding end of the packaging paper.

[0048] S4. Shifting: The shifting drive unit operates, driving the shifting tray to move to the bundling station. At this time, the shifting tray is inserted into the secondary folding groove and partially passes through the corresponding pre-folding push block. During the insertion of the shifting tray, the folding of the corresponding end of the packaging paper is completed. Subsequently, the shifting drive unit continues to operate, driving the shifting tray, paper stack and packaging paper to shift to the adhesive application station.

[0049] S5. Applying Adhesive: The adhesive application module works to apply adhesive tape to the end of the packaging paper located below the stack. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the automated paper stacking equipment in this embodiment;

[0051] Figure 2 This is a structural schematic diagram of the automated paper stacking and bundling equipment in this embodiment, viewed from the rear.

[0052] Figure 3 This is a schematic diagram of the automated paper stacking equipment in this embodiment, excluding the temporary storage conveyor line and the material storage line.

[0053] Figure 4 This is a schematic diagram of the rear structure of the automated paper stacking equipment in this embodiment, excluding the temporary storage conveyor line and the material storage line.

[0054] Figure 5 This is a schematic diagram of the frame structure in the automated paper stacking and bundling equipment of this embodiment;

[0055] Figure 6 This is a top view of the frame in the automated paper stacking and bundling equipment of this embodiment;

[0056] Figure 7 This is a side view of the paper feeding module and the bundling module working together in the automated paper stacking equipment of this embodiment;

[0057] Figure 8This is a schematic diagram of the structure of the paper feeding module and the bundling module working together in the automated paper stacking equipment of this embodiment;

[0058] Figure 9 This is a schematic diagram of the structure of the feeding module and the lifting component in the automated paper stacking equipment of this embodiment;

[0059] Figure 10 This is a schematic diagram of the structure of the material handling component and the lifting component in the automated paper stacking equipment of this embodiment;

[0060] Figure 11 This is a top view of the material handling component in the automated paper stacking and bundling equipment of this embodiment;

[0061] Figure 12 This is a schematic diagram of the lifting component in the automated paper stacking and bundling equipment of this embodiment;

[0062] Figure 13 This is a schematic diagram of the structure of the paper folding component and the second platform in the automated paper stacking equipment of this embodiment;

[0063] Figure 14 This is a side view of the paper folding assembly in the automated paper stacking equipment of this embodiment;

[0064] Figure 15 This is a schematic diagram of the paper folding assembly in the automated paper stacking equipment of this embodiment;

[0065] Figure 16 This is a schematic diagram of the transfer component in the automated paper stacking and bundling equipment of this embodiment;

[0066] Figure 17 This is a schematic diagram of the paper feeding module in the automated paper stacking equipment of this embodiment;

[0067] Figure 18 This is a structural schematic diagram of the paper feeding module from the rear view in the automated paper stacking equipment of this embodiment;

[0068] Figure 19 This is a schematic diagram of the paper cutting mechanism in the automated paper stacking equipment of this embodiment;

[0069] Figure 20 This is a side view of the paper cutting mechanism in the automated paper stacking equipment of this embodiment;

[0070] Figure 21 This is a schematic diagram of the paper-pulling mechanism in the automated paper stacking equipment of this embodiment;

[0071] Figure 22 This is a schematic diagram of the structure of the adhesive application module and the second platform in the automated paper stacking equipment of this embodiment.

[0072] Figure 23 This is a front view of the adhesive application module in the automated paper stacking equipment of this embodiment;

[0073] Figure 24 This is a schematic diagram of the adhesive application module in the automated paper stacking equipment of this embodiment;

[0074] Figure 25 This is a cross-sectional view of the adhesive application module in the automated paper stacking equipment of this embodiment;

[0075] Figure 26 This is a schematic diagram of the glue-cutting mechanism in the automated paper stacking equipment of this embodiment;

[0076] Figure 27 This is a schematic diagram of the structure of the paper stacking automated bundling equipment in this embodiment, showing the cooperation between the material discharging module and the adhesive application module.

[0077] Figure 28 This is a schematic diagram of the structure of the paper stack automated bundling equipment in this embodiment, showing the cooperation between the discharge conveyor line and the storage line. Implementation

[0078] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Example

[0079] like Figures 1-4 As shown, an automated paper stacking and bundling device includes a frame 1, a feeding module 3, a paper feeding module 6, a bundling module 2, an adhesive applicator 4, and a discharging module 5.

[0080] like Figures 3-6 As shown, the frame 1 is provided with a first platform 12 and a second platform 11, with the second platform 11 located above the first platform 12. The first platform 12 is provided with a feeding station 121, and the second platform 11 is provided with a strapping station 111 and an adhesive application station 112. The strapping station 111 is provided with a lifting channel 113, which extends vertically through the second platform 11. The feeding station 121 is aligned with the lifting channel 113.

[0081] like Figures 7-11 As shown, the feeding module 3 includes a feeding conveyor belt 32 and a material handling component 33. The material handling component 33 includes a lateral positioning plate 333, an end-oriented sorting mechanism and a lateral pushing mechanism. The end-oriented sorting unit and the lateral pushing unit are located on the same side of the lateral positioning plate 333.

[0082] like Figures 8-10As shown, the end-oriented sorting mechanism includes two end-oriented integral units. Each end-oriented sorting unit includes an end-oriented pressure plate 332 and an end-oriented driving component. The end-oriented pressure plates 332 of the two end-oriented sorting units are arranged opposite to each other, and the end-oriented driving component is used to drive the corresponding end-oriented pressure plate 332 to move. The feeding module 3 is located at the feeding station 121. The area between the end-oriented pressure plate 332 and the side positioning plate 333 is the feeding and sorting area. The output end of the feeding conveyor belt 32 is aligned with the feeding and sorting area.

[0083] like Figures 8-10 As shown, the lateral pushing mechanism includes a pushing plate 331 and a pushing drive component. The pushing plate 331 is disposed opposite to the lateral positioning plate 333. The pushing drive component drives the pushing plate 331 to move relative to the lateral positioning plate 333 and to reciprocate between the output end of the feeding conveyor belt 32 and the feeding sorting area. The lateral pushing mechanism is fixedly connected to the end pressure plate 332 and moves synchronously with it.

[0084] During feeding, the paper stack is first conveyed to the output end by the feeding conveyor belt 32. The push drive and the lateral drive work together to drive the push plate 331 to move to the rear of the paper stack. Then, the push drive moves in the lateral direction, pushing the paper stack into the feeding and sorting area. The push plate 331 and the lateral positioning plate 333 work together to complete the lateral sorting of the paper stack. Finally, the lateral drive drives the two lateral pressure plates 332 to move closer together to complete the lateral sorting.

[0085] like Figure 1 and Figure 2 As shown, the feeding module 3 also includes a temporary storage conveyor line 31. The output end of the temporary storage conveyor line 31 is aligned with the input end of the feeding conveyor belt 32. The temporary storage conveyor line 31 can sequentially place multiple paper stacks along the conveying direction. The input end of the feeding conveyor belt 32 is also equipped with a photoelectric detection unit. When the temporary storage conveyor line 31 feeds a single paper stack into the feeding conveyor line, the photoelectric detection unit detects a material presence signal, and the temporary storage conveyor line 31 stops working, ensuring that only a single paper stack enters the feeding conveyor belt 32 at a time.

[0086] like Figure 7 As shown, the paper feeding module 6 is used to transport packaging paper between the feeding station 121 and the bundling station 111, and includes a paper feeding component 61 and a paper dispensing component 62.

[0087] like Figures 17-21 As shown, the paper feeding assembly 61 includes a paper cutting mechanism 612 and a feeding mechanism 611. For example... Figure 19 and Figure 20As shown, the paper cutting mechanism 612 includes a paper cutting platform 6122, a paper cutting drive, and a first cutter 6123. The first cutter 6123 is located above the paper cutting platform 6122, and the paper cutting drive is used to drive the first cutter 6123 to move up and down relative to the paper cutting platform 6122. Specifically, the paper cutting platform 6122 is located on one side of the second platform 11 and between the first platform 12 and the second platform 11. The height difference between the paper cutting platform 6122 and the first platform 12 is not less than the height of the paper stack. The paper cutting platform 6122 also includes two paper pressing units 6121. Each paper pressing unit includes a pressing plate and a paper pressing drive unit facing the paper cutting platform 6122. The paper pressing drive unit drives the pressing plate to move up and down, and the first cutter 6123 is located between the two pressing plates.

[0088] like Figure 17 and Figure 18 As shown, the feeding mechanism 611 includes a paper feed clamp and a feeding drive. Specifically, the paper feed clamp is a negative pressure suction head. Specifically, a guide rail is mounted on the lower surface of the second platform 11, and the paper feed clamp is slidably connected to the second platform 11 via the guide rail. The feeding drive is a cylinder or transmission belt that drives the paper feed clamp to slide. The feeding drive is used to drive the paper feed clamp to pick up paper on the paper cutting platform 6122 and translate it a specific length towards the second platform 11.

[0089] like Figure 21 As shown, the paper feeding assembly 62 includes a paper storage bracket 621 and a paper pulling mechanism 622, with the paper pulling mechanism 622 located between the paper storage bracket 621 and the paper cutting mechanism 612. The paper storage bracket 621 includes a paper storage shaft 6212, which is mounted on the frame 1 via a magnetic torque converter 6211. The magnetic torque converter 6211 can control the torque exerted by the feeding mechanism 611 and the paper pulling mechanism 622 to pull the packaging paper out of the paper storage bracket 621, ensuring stable paper pulling.

[0090] like Figure 21 As shown, the paper pulling mechanism 622 includes at least two fixed shafts 6223, with a movable shaft 6222 between each pair of adjacent fixed shafts 6223. The paper pulling mechanism 622 also includes a paper pulling drive component, which drives the movable shaft 6222 to move relative to the fixed shafts 6223. The paper pulling mechanism 622 further includes a paper pulling clamping unit 6221, which includes a paper pulling pressure plate and a paper pulling clamping drive unit. The paper pulling pressure plate is located above the paper cutting platform 6122, and the paper pulling clamping drive unit drives the paper pulling pressure plate to move relative to the paper pulling platform.

[0091] like Figure 21As shown, specifically, the fixed shaft 6223 and the movable shaft 6222 are arranged parallel to each other and parallel to the paper storage shaft 6212, while being perpendicular to the paper feeding direction of the feeding mechanism 611. The fixed shaft 6223 and the movable shaft 6222 are respectively connected to the frame 1, and each fixed shaft 6223 is located at the same horizontal height. The paper pulling drive is used to drive the movable shaft 6222 to move up and down.

[0092] The paper storage bracket 621 is used to store a whole roll of packaging paper. To reduce the resistance of the feeding mechanism 611, a paper pulling mechanism 622 is provided to pre-pull the packaging paper from the paper roll by a certain length. During the paper pulling operation, the free end of the packaging paper first passes around the fixed shaft 6223 and the movable shaft 6222, and is pressed and fixed on the paper cutting platform 6122 by the paper pulling clamping unit 6221. Then, the movable shaft 6222 moves relative to the fixed shaft 6223, thereby pulling the packaging paper out of the paper roll.

[0093] During the paper feeding operation, the two paper pressing units 6121 are initially in the raised state. The feed drive drives the paper feed chuck to pick up the end of the packaging paper and feeds it horizontally, with the packaging paper passing under the two paper pressing units 6121. After the packaging paper has been fed to a specific length, the paper pressing units 6121 press the packaging paper firmly, and the first cutter 6123 cuts the packaging paper. Before the feeding mechanism 611 feeds the paper, the movable shaft 6222 resets, and the pulled-out packaging paper is in a relaxed state, allowing the feeding mechanism 611 to feed the paper easily. The paper feed chuck and the paper pressing units 6121 are in the same position before the paper stack is lifted.

[0094] like Figure 7 and Figure 8 As shown, the binding module 2 includes a lifting component 21, a folding component 22, and a transposition component 23.

[0095] like Figures 7-12 As shown, the lifting assembly 21 includes a carrying unit 211 and a lifting drive unit 212. The lifting drive unit 212 drives the carrying unit 211 to move between the feeding station 121 and the bundling station 111. Specifically, the carrying unit 211 has at least two position states. In the first position state, the carrying unit 211 is located in the feeding and sorting area and is not higher than the feeding conveyor belt 32. In the second position state, the carrying unit 211 is located in the bundling station 111 and is not lower than the pre-folding push block 2221. The lifting drive unit 212 is a cylinder that drives the carrying unit 211 to move up and down.

[0096] like Figure 12As shown, the supporting unit 211 includes a fixed block 2111, and movable blocks 2112 are respectively provided on both sides of the fixed block 2111. The movable blocks 2112 are arranged opposite to the pre-folding push block 2221, and the movable blocks 2112 are connected to the fixed block 2111 through lateral elastic elements. The fixed block 2111 is connected to the lifting drive unit 212.

[0097] As the packing paper is lifted along with the stack of paper, its two ends naturally droop and are in a relatively loose state. To ensure the reliability of the bundled packaging, during one folding process, the pre-folding push block 2221 contacts the movable block 2112 and together presses down on the lower end of the packaging paper. Since the movable block 2112 can move relative to the fixed block 2111, after clamping the packaging paper, the pre-folding push block 2221 and the movable block 2112 can still move together for a distance, which can tighten the packaging paper, making the bundling effect more secure and reliable.

[0098] In addition, to achieve paper folding, the pre-folding pusher 2221 needs to extend a certain distance under the paper stack. However, if a large space is left on both sides of the supporting unit 211, it will inevitably affect the reliability of supporting the paper stack. In order to ensure the reliability of the supporting unit 211 in supporting the paper stack, while taking into account the space requirements for one fold, movable blocks 2112 are set on both sides of the supporting unit. During the lifting process, the movable blocks 2112 can play the role of supporting the paper stack. During one fold, the movable blocks 2112 can retract under the push of the pre-folding pusher 2221, leaving enough space for one fold.

[0099] like Figures 13-15 As shown, the origami assembly 22 includes a primary origami mechanism 222 and a secondary origami mechanism 221. The primary origami mechanism 222 includes two pre-folding push blocks 2221, which are positioned opposite each other relative to the binding station 111. The primary origami mechanism 222 also includes a primary drive component 2223 for driving the pre-folding push blocks 2221 to translate relative to the binding station 111. The secondary origami mechanism 221 includes a secondary insert plate 2212 and a secondary drive component 2211, which drives the secondary insert plate 2212 to translate.

[0100] Furthermore, such as Figure 7 and Figure 8 As shown, the origami assembly 22 also includes an origami pressing mechanism 24, which includes a fixed base and a pressing block. The pressing block is connected to the fixed base via a pressing elastic element. The origami pressing mechanism 24 is located above the bundling station 111, with the pressing block facing the bundling station 111. During the first and second folding processes, the origami pressing mechanism 24 provides pre-tightening pressure to the packaging paper and the stack of paper, thus pressing the stack of paper and the packaging paper.

[0101] like Figure 16 As shown, the indexing component 23 includes an indexing tray 231 and an indexing drive unit 232. The indexing drive unit 232 is used to drive the indexing tray 231 to move between the binding station 111 and the adhesive application station 112.

[0102] like Figure 16 As shown, specifically, the indexing drive unit 232 includes a transverse drive member, an intermediate slider, and a longitudinal drive member. The transverse drive member is used to drive the intermediate slider to translate relative to the frame 1. The longitudinal drive member is disposed on the intermediate slider and is used to drive the indexing tray 231 to move relative to the pre-folding push block 2221.

[0103] like Figure 15 As shown, the secondary insert plate 2212 corresponds to one of the pre-folding push blocks 2221, and the indexing tray 231 corresponds to the other pre-folding push block 2221. A secondary folding groove 2222 is provided on the upper surface of the pre-folding push block 2221, and the secondary insert plate 2212 and the indexing tray 231 can be partially inserted into the secondary folding groove 2222 of the corresponding pre-folding push block 2221.

[0104] Since the secondary folding groove 2222 will hinder the translational movement of the indexing tray 231, an additional drive is needed. Correspondingly, a lifting cylinder can be set in the indexing assembly 23 to drive the indexing tray 231 to move up and down, so that the indexing tray 231 and the pre-folding push block 2221 are staggered in height. In this embodiment, the method adopted is to set a primary folding bracket 223 above the second platform 11, and both primary folding mechanisms 222 are set on the primary folding bracket 223. At the same time, a lifting cylinder is set below the second platform 11 to drive the primary folding bracket 223 to rise and fall. During the folding process, the primary folding bracket 223 is in a raised state. When the indexing operation is required, the primary folding bracket 223 falls to make room for the translational movement of the indexing tray 231.

[0105] like Figure 16 As shown, the indexing assembly 23 further includes an indexing limit unit 233, which includes an upper limit plate and a limit driving unit. The upper limit plate is arranged vertically opposite to the indexing support plate 231, and the limit driving unit is used to drive the upper limit plate to move vertically relative to the indexing support plate 231.

[0106] During the transfer of the paper stack from the bundling station 111 to the adhesive application station 112, the upper limit plate and the transfer tray 231 work together to press the paper stack firmly, effectively ensuring its stability during transport. Simultaneously, they effectively limit the fold at the bottom of the packaging paper, ensuring smooth adhesive application.

[0107] like Figures 3-6 As shown, the adhesive application module 4 corresponds to the adhesive application station 112. Figures 22-26 As shown, the adhesive applicator module 4 includes an adhesive feeding assembly and an adhesive applicator 43. The adhesive feeding assembly includes an adhesive storage bracket 41, an adhesive cutting structure 42, and an adhesive feeding mechanism 45. The adhesive storage bracket 41 is used to store a whole roll of adhesive tape.

[0108] like Figures 22-26 As shown, the tape cutting structure 42 includes a tape cutting base 47, a second cutter 46, and a tape cutting drive. The tape cutting drive is used to drive the second cutter 46 to move relative to the tape cutting base 47. A tape pressing unit 421 is provided on the tape cutting base 47. The tape pressing unit 421 includes a tape pressing plate and a tape pressing drive. The tape pressing plate is located above the tape cutting base 47, and the tape pressing drive is used to drive the tape pressing plate to move up and down.

[0109] like Figures 22-26 As shown, the adhesive applicator 43 includes an adhesive applicator head 431 and an adhesive applicator drive. The adhesive applicator head 431 is positioned upwards and forms an adhesive applicator area above it. The adhesive applicator drive is used to drive the adhesive applicator head 431 to move up and down. The adhesive applicator head 431 includes a negative pressure adsorption unit. Specifically, the adhesive applicator head 431 has an adhesive applicator surface, and the adsorption surface of the negative pressure adsorption unit is located on the adhesive applicator surface.

[0110] like Figures 22-26 As shown, the adhesive feeding mechanism 45 includes an adhesive feeding chuck and an adhesive feeding drive. The adhesive feeding drive is used to drive the adhesive feeding chuck to pick up the adhesive tape from the adhesive cutting structure 42 and transfer it to the adhesive application area. The adhesive feeding mechanism 45 is used to pick up the adhesive tape, pull it out to a certain length and move it to the adhesive application area. The adhesive cutting structure 42 is used to cut the adhesive tape at a specific position.

[0111] like Figure 26 As shown, the adhesive cutting base 47 has an adhesive dispensing notch 471 on the side facing the adhesive application area. The width of the adhesive dispensing notch 471 is smaller than the width of the adhesive tape. An auxiliary notch is also provided on the corresponding adhesive tape pressure plate. The auxiliary notch matches and aligns with the adhesive dispensing notch 471. The width of the second cutter 46 is greater than the width of the adhesive dispensing notch 471, and the width of the adhesive feeding clamp is smaller than the width of the adhesive dispensing notch 471.

[0112] The adhesive feeding clamp includes an upper clamp and a lower clamp. The clamping surface of the upper clamp is provided with an anti-stick layer, and the tape pressure plate is also provided with an anti-stick layer. The anti-stick layer is made of polytetrafluoroethylene (PTFE). PTFE is an oil-based material that not only compresses the tape but also prevents it from sticking to the tape.

[0113] like Figure 25As shown, the adhesive application drive component further includes a primary cylinder 432 and a secondary cylinder 433. The primary cylinder 432 is fixedly mounted on the frame 1, and its output end is connected to a transition connecting block. The secondary cylinder 433 is mounted on the transition connecting block, and its output end is connected to the adhesive application head 431.

[0114] The adhesive applicator 43 has two strokes, driven by a primary cylinder 432 and a secondary cylinder 433 respectively. In one stroke, the adhesive applicator 431 feeds and contacts the adhesive tape to pick it up. In the second stroke, the adhesive applicator 431 drives the adhesive tape to stick onto the packaging paper.

[0115] like Figure 22 and Figure 23 As shown, the adhesive application module 4 also includes an adhesive application support frame 44, which comprises two adhesive application support plates. The adhesive application assembly 43 is located between the two adhesive application support plates. After the paper stack is adhesively applied, it rests on the adhesive application support frame 44, and the indexing assembly 23 retracts, leaving space for subsequent unloading operations. Furthermore, the adhesive application support frame 44 is also connected to a support drive unit, which drives the adhesive application support plates to move up and down. During the adhesive application process, the adhesive application support plates are in a downward state. After the adhesive application is completed, the adhesive application support plates are raised to support the paper stack, and then the indexing assembly 23 retracts.

[0116] Initially, the carrying unit 211 is located at the feeding station 121. During the paper stacking operation, the paper stack is first fed onto the carrying unit 211, while the paper feeding module 6 simultaneously conveys the packaging paper between the feeding station 121 and the bundling station 111, with the packaging paper positioned above the paper stack. The lifting drive unit 212 pushes the carrying unit 211 and the paper stack upwards, passing through the lifting channel 113 and entering the bundling station 111. During the ascent, the packaging paper contacts the paper stack and is lifted synchronously, with both ends of the packaging paper drooping downwards.

[0117] Subsequently, the primary drive unit 2223 drives two pre-folding push blocks 2221 to move below the paper stack, folding the lower end of the packaging paper downwards. The paper stack falls onto the pre-folding push blocks 2221. Due to the obstruction of the support unit 211, the movement range of the pre-folding push blocks 2221 is limited. The lifting drive unit 212 resets, driving the support unit 211 to move downwards, making room for the secondary fold. The secondary drive unit 2211 continues to work, driving the secondary insert plate 2212 to move along the corresponding secondary folding groove 2222 until it partially passes through the corresponding pre-folding push block 2221, performing a folding operation on the corresponding end of the packaging paper. Since the support unit 211 has been reset at this time, it can be ensured that the corresponding end of the packaging paper is folded smoothly.

[0118] Finally, the indexing drive unit 232 drives the indexing tray 231 to insert into the secondary folding slot 2222 and partially pass through the corresponding pre-folding push block 2221, completing the folding of the corresponding end of the packaging paper and placing the entire paper stack onto the indexing tray 231. The indexing drive unit 232 drives the indexing tray 231, the paper stack, and the packaging paper to the adhesive application station 112. The adhesive application module 4 then operates, applying adhesive tape to the end of the packaging paper located below the stack.

[0119] like Figure 27 and Figure 28 As shown, the discharge module 5 includes a discharge component 52, a discharge conveyor line 53, a storage line 51, and a product transfer component. The discharge component 52 is used to transfer the paper stacks that have been glued from the glue application station 112 to the input end of the discharge conveyor line 53, and the product transfer component is used to transfer the paper stacks from the output end of the discharge conveyor belt to the storage line 51.

[0120] like Figure 27 and Figure 28 As shown, the discharge assembly 52 includes discharge grippers and a discharge drive unit. The discharge drive unit is used to drive the discharge grippers to pick up and transfer the paper stack at the adhesive application station 112. The discharge grippers are positioned downwards. During discharge, the discharge grippers grip the upper end of the paper stack, while the adhesive application area of ​​the packaging paper is located at the lower end. After the discharge grippers pick up the paper stack, the reliability of the adhesive application can be checked using the weight of the paper stack itself.

[0121] like Figure 27 and Figure 28 As shown, the product transfer assembly 23 includes a lifting unit 542 and a translation pushing unit 541. The discharge conveyor line 53 transports the paper stack to the lifting unit 542. The lifting unit 542 descends to the same height as the storage line 51. The translation pushing unit 541 pushes the paper stack onto the storage line 51.

[0122] The automated paper stacking and bundling equipment of this application can automatically complete the paper feeding, bundling and adhesive application operations. It adopts a three-step folding method of first folding, second folding and transposition pallet 231 folding, which can efficiently and reliably complete the folding operation of packaging paper, provide packaging for subsequent adhesive application, and has good bundling effect and high operation efficiency.

[0123] An automated paper stacking method, employing the automated paper stacking equipment described above;

[0124] At least the following steps are included:

[0125] S1. Feeding: The paper stack is fed into the carrying unit 211 located at the feeding station 121. At the same time, the paper feeding module 6 works to transport the packaging paper between the feeding station 121 and the bundling station 111. At this time, the packaging paper is located above the paper stack.

[0126] S2. Lifting: The lifting drive unit 212 works to push the carrying unit 211 and the paper stack upward and through the lifting channel 113 into the bundling station 111; at this time, the upper surface of the carrying unit 211 is not lower than the upper surface of the pre-folding push block 2221; during the lifting process, the packaging paper contacts the paper stack and is lifted synchronously, and the two ends of the packaging paper hang down;

[0127] S3. Paper clamping: When the drive unit 2223 works, the two pre-folding push blocks 2221 move closer to each other and move to the bottom of the paper stack; the lifting drive unit 212 resets, drives the bearing unit 211 to move downward, and the paper stack falls onto the pre-folding push block 2221.

[0128] The secondary drive unit 2211 operates, driving the secondary insert plate 2212 to move along the corresponding secondary folding groove 2222 until it partially passes through the corresponding pre-folding push block 2221, and folding the corresponding end of the packaging paper.

[0129] S4. Shifting: The shifting drive unit 232 operates, driving the shifting tray 231 to move to the bundling station 111. At this time, the shifting tray 231 is inserted into the secondary folding groove 2222 and partially passes through the corresponding pre-folding push block 2221. During the insertion of the shifting tray 231, the folding of the corresponding end of the packaging paper is completed. Subsequently, the shifting drive unit 232 continues to operate, driving the shifting tray 231, the paper stack and the packaging paper to shift to the adhesive application station 112.

[0130] S5. Applying Adhesive: The adhesive application module 4 operates to apply adhesive tape to the end of the packaging paper located below the stack.

[0131] In summary, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated paper stacking and bundling device, characterized in that, At least including: The frame is provided with a feeding station, a strapping station and an adhesive application station. The strapping station is provided with a lifting channel, and the feeding station is located below the lifting channel. The paper feeding module is used to convey packaging paper between the feeding station and the bundling station. The bundling module includes a lifting component, a folding component, and a transposition component. The lifting assembly includes a support unit and a lifting drive unit, wherein the lifting drive unit is used to drive the support unit to move between the feeding station and the binding station. The origami assembly includes a primary or secondary origami mechanism. The primary origami mechanism includes two pre-folding push blocks, which are positioned opposite each other to the binding station. The primary origami mechanism also includes a primary drive unit for driving the pre-folding push blocks to translate relative to the binding station. The secondary origami mechanism includes a secondary insert plate and a secondary drive unit, which drives the secondary insert plate to translate. The indexing assembly includes an indexing tray and an indexing drive unit, wherein the indexing drive unit is used to drive the indexing tray to move between the bundling station and the adhesive application station. The secondary insert plate corresponds to one of the pre-folding push blocks, and the indexing tray corresponds to the other pre-folding push block; the upper surface of the pre-folding push block is provided with a secondary folding groove, and the secondary insert plate and the indexing tray can be partially inserted into the secondary folding groove of the corresponding pre-folding push block; Adhesive application module, which corresponds to the adhesive application station; The discharge module includes a discharge gripper and a discharge drive unit. The discharge drive unit is used to drive the discharge gripper to pick up and transfer the paper stack at the adhesive application station. The bearing unit includes a fixed block, and movable blocks are respectively provided on both sides of the fixed block. The movable blocks are arranged opposite to the pre-folding push block. The movable blocks are connected to the fixed block through lateral elastic elements. The fixed block is connected to the lifting drive unit.

2. The automated paper stacking and bundling equipment according to claim 1, characterized in that: The origami assembly further includes an origami pressing mechanism, which includes a fixed base and a pressing block. The pressing block is connected to the fixed base via a pressing elastic element. The origami pressing mechanism is located above the binding station, with the pressing block facing the binding station.

3. The automated paper stacking and bundling equipment according to claim 1, characterized in that: The origami assembly also includes a primary origami support, with two primary origami mechanisms mounted on the primary origami support, and a lifting cylinder for driving the primary origami support to rise and fall.

4. The automated paper stacking and bundling equipment according to claim 1, characterized in that: The indexing assembly further includes an indexing limit unit, which includes an upper limit plate and a limit drive unit. The upper limit plate is disposed vertically opposite to the indexing tray, and the limit drive unit is used to drive the upper limit plate to move vertically relative to the indexing tray.

5. The automated paper stacking and bundling equipment according to claim 1, characterized in that: The paper feeding module includes a paper feeding assembly, which includes a paper cutting mechanism and a feeding mechanism; The paper cutting mechanism includes a paper cutting platform, a paper cutting drive, and a first cutter. The first cutter is located above the paper cutting platform, and the paper cutting drive is used to drive the first cutter to move up and down relative to the paper cutting platform. The feeding mechanism includes a paper feed chuck and a feeding drive, wherein the feeding drive is used to drive the paper feed chuck to pick up paper and move it in translation on the paper cutting platform.

6. The automated paper stacking and bundling equipment according to claim 5, characterized in that: The paper feeding module also includes a paper feeding assembly, which includes a paper storage bracket and a paper pulling mechanism, wherein the paper pulling mechanism is located between the paper storage bracket and the paper cutting mechanism; The paper pulling mechanism includes at least two fixed shafts, with a movable shaft between each pair of adjacent fixed shafts; the paper pulling mechanism also includes a paper pulling drive, which is used to drive the movable shaft to move relative to the fixed shafts.

7. The automated paper stacking equipment according to any one of claims 1-6, characterized in that: The adhesive applicator module includes an adhesive feeding assembly and an adhesive applicator. The adhesive feeding assembly includes an adhesive storage bracket, an adhesive cutting mechanism, and an adhesive feeding mechanism. The cutting mechanism includes a cutting base, a second cutter, and a cutting drive, wherein the cutting drive is used to drive the second cutter to move relative to the cutting base; The adhesive applicator includes an adhesive applicator head and an adhesive applicator drive. The adhesive applicator head is positioned upwards and forms an adhesive applicator area above it. The adhesive applicator drive is used to drive the adhesive applicator head to move up and down. The adhesive feeding mechanism includes an adhesive feeding chuck and an adhesive feeding drive. The adhesive feeding drive is used to drive the adhesive feeding chuck to pick up the adhesive tape from the adhesive cutting mechanism and transfer it to the adhesive application area.

8. The automated paper stacking and bundling equipment according to claim 7, characterized in that: The adhesive application drive includes a primary cylinder and a secondary cylinder. The primary cylinder is fixedly mounted on the frame, and its output end is connected to a transition connecting block. The secondary cylinder is mounted on the transition connecting block, and its output end is connected to the adhesive application head.

9. An automated paper stacking method, characterized in that: The paper stacking automated bundling equipment as described in any one of claims 1-8 is adopted; At least the following steps are included: S1. Feeding: The paper stack is fed into the carrying unit located at the feeding station. At the same time, the paper feeding module works to transport the packaging paper between the feeding station and the bundling station. At this time, the packaging paper is located above the paper stack. S2. Lifting: The lifting drive unit works to push the carrying unit and paper stack upward and through the lifting channel into the bundling station; at this time, the upper surface of the carrying unit is not lower than the upper surface of the pre-folding push block; during the rising process, the packaging paper contacts the paper stack and is lifted synchronously, and the two ends of the packaging paper hang down; S3. Paper clamping: When the drive unit works, the two pre-folding push blocks move closer to each other and move to the bottom of the paper stack; the lifting drive unit resets, drives the carrying unit to move downward, and the paper stack falls onto the pre-folding push blocks; The secondary drive unit operates, driving the secondary insert plate to move along the corresponding secondary folding groove until it partially passes through the corresponding pre-folding push block, and folding the corresponding end of the packaging paper. S4. Shifting: The shifting drive unit operates, driving the shifting tray to move to the bundling station. At this time, the shifting tray is inserted into the secondary folding groove and partially passes through the corresponding pre-folding push block. During the insertion of the shifting tray, the folding of the corresponding end of the packaging paper is completed. Subsequently, the shifting drive unit continues to operate, driving the shifting tray, paper stack and packaging paper to shift to the adhesive application station. S5. Applying Adhesive: The adhesive application module works to apply adhesive tape to the end of the packaging paper located below the stack.

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